How should I configure my firewall and mail servers so my company can use Pluralsight?

Tags: Skills

You'll find steps below on configuring your company's firewall and mail servers, to ensure your users can access Pluralsight.


Please make certain you configure the following hosts as trusted senders on your email server and firewall so that mail from Pluralsight isn't rejected.

  • Mandrill, IP address
  • Sparkpost, IP addresses and,

Please make sure is not routed to spam. If you don't do this, your users may not receive their business subscription invitations and password reset emails.

If your organization elects into customer marketing communications, typically around adoption and engagement, please whitelist and configure this host as a trusted sender on your email server and firewall:

  • Marketo,, IP address

This is optional and only necessary for organizations that are working with Pluralsight and using customer marketing communications.


Be sure to whitelist the following hosts in your firewall for outbound TCP connections over ports 80 and 443 (for HTTP and HTTPS, respectively):

  • *
  • *

For Pluralsight Skills interactive courses, please also allow WSS traffic over port 443.

Pluralsight uses Cloudflare and AWS. To view all Cloudflare IP addresses, please visit this Cloudflare page. To view our Amazon AWS IP addresses (US-West-2 and Cloudfront), please click here.

Video content

If you’re experiencing issues with video content, check out our video checkup tool, as well as this article on video troubleshooting steps

To verify that a local firewall is not blocking access to our video servers, please try downloading this 40MB video file directly from our content delivery network here. If your firewall is rejecting our videos, you'll likely see 403 Forbidden. This may include a message explaining why your firewall blocked your request.

If you still are having issues with our content, especially playing videos, please reach out to your IT Ops team to make sure the four subdomains below are allowed through your network firewall and any security appliance.



Pluralsight Skills projects require local access to your command line and an IDE, and network access to the following:

In addition, projects requires access to, and the ability to clone a repository and install required software locally. 

Discussion boards

To view and use discussion boards on video courses and projects, please whitelist

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